import axios from "axios";
import { Notification, MessageBox, Message, Loading } from "element-ui";
import store from "@/store";
import { tansParams, blobValidate } from "@/utils/bodata";
import cache from "@/plugins/cache";
// import { saveAs } from "file-saver";
// export const url = 'http://192.168.1.113:8090/bmlq'

let downloadLoadingInstance;
// 是否显示重新登录
export let isRelogin = { show: false };

axios.defaults.headers["Content-Type"] = "application/json;charset=utf-8";
// 创建axios实例
const service = axios.create({
  // axios中请求配置有baseURL选项，表示请求URL公共部分
  baseURL: "",
  // 超时
  timeout: 10000,
});
let userDet = {
  token: "pat_La8cgWA7YHSzvpfSTPSNFnW7P4mrmPTHZVrXu5Nudp3WDFjhiq4NyZ5m4iGG79jl",
  bot_id: "7460766089165864995",
};
// request拦截器
service.interceptors.request.use(
  (config) => {
    // 是否需要设置 token
    const isToken = (config.headers || {}).isToken === false;
    // 是否需要防止数据重复提交
    const isRepeatSubmit = (config.headers || {}).repeatSubmit === false;
    config.headers["Authorization"] = "Bearer " + userDet.token; // 让每个请求携带自定义token 请根据实际情况自行修改
    // get请求映射params参数
    if (config.method === "get" && config.params) {
      let url = config.url + "?" + tansParams(config.params);
      url = url.slice(0, -1);
      config.params = {};
      config.url = url;
    }
    if (
      !isRepeatSubmit &&
      (config.method === "post" || config.method === "put")
    ) {
      const requestObj = {
        url: config.url,
        data:
          typeof config.data === "object"
            ? JSON.stringify(config.data)
            : config.data,
        time: new Date().getTime(),
      };
      const requestSize = Object.keys(JSON.stringify(requestObj)).length; // 请求数据大小
      const limitSize = 5 * 1024 * 1024; // 限制存放数据5M
      if (requestSize >= limitSize) {
        console.warn(
          `[${config.url}]: ` +
            "请求数据大小超出允许的5M限制，无法进行防重复提交验证。"
        );
        return config;
      }
      const sessionObj = cache.session.getJSON("sessionObj");
      if (
        sessionObj === undefined ||
        sessionObj === null ||
        sessionObj === ""
      ) {
        cache.session.setJSON("sessionObj", requestObj);
      } else {
        const s_url = sessionObj.url; // 请求地址
        const s_data = sessionObj.data; // 请求数据
        const s_time = sessionObj.time; // 请求时间
        const interval = 1000; // 间隔时间(ms)，小于此时间视为重复提交
        if (
          s_data === requestObj.data &&
          requestObj.time - s_time < interval &&
          s_url === requestObj.url
        ) {
          const message = "数据正在处理，请勿重复提交";
          console.warn(`[${s_url}]: ` + message);
          return Promise.reject(new Error(message));
        } else {
          cache.session.setJSON("sessionObj", requestObj);
        }
      }
    }
    return config;
  },
  (error) => {
    console.log(error);
    Promise.reject(error);
  }
);

// 响应拦截器
service.interceptors.response.use(
  (res) => {
    // 未设置状态码则默认成功状态
    const code = res.data.code || 200;
    // 获取错误信息
    const msg = res.data.msg;
    // 二进制数据则直接返回
    if (
      res.request.responseType === "blob" ||
      res.request.responseType === "arraybuffer"
    ) {
      return res.data;
    }
    if (code === 401) {
      console.log(code.data);
      return Promise.reject("无效的会话，或者会话已过期，请重新登录。");
    } else if (code === 500) {
      Message({ message: msg, type: "error" });
      return Promise.reject(new Error(msg));
    } else if (code === 601) {
      Message({ message: msg, type: "warning" });
      return Promise.reject("error");
    } else if (code !== 200) {
      Notification.error({ title: msg });
      return Promise.reject("error");
    } else {
      return res.data;
    }
  },
  (error) => {
    console.log("err" + error);
    let { message } = error;
    if (message == "Network Error") {
      message = "后端接口连接异常";
    } else if (message.includes("timeout")) {
      message = "系统接口请求超时";
    } else if (message.includes("Request failed with status code")) {
      message = "系统接口" + message.substr(message.length - 3) + "异常";
    }
    Message({ message: message, type: "error", duration: 5 * 1000 });
    return Promise.reject(error);
  }
);

// 通用下载方法
// export function download(url, params, filename, config) {
//   downloadLoadingInstance = Loading.service({
//     text: "正在下载数据，请稍候",
//     spinner: "el-icon-loading",
//     background: "rgba(0, 0, 0, 0.7)",
//   });
//   return service
//     .post(url, params, {
//       transformRequest: [
//         (params) => {
//           return tansParams(params);
//         },
//       ],
//       headers: { "Content-Type": "application/x-www-form-urlencoded" },
//       responseType: "blob",
//       ...config,
//     })
//     .then(async (data) => {
//       const isBlob = blobValidate(data);
//       if (isBlob) {
//         const blob = new Blob([data]);
//         saveAs(blob, filename);
//       } else {
//         const resText = await data.text();
//         const rspObj = JSON.parse(resText);
//         const errMsg = rspObj.msg;
//         Message.error(errMsg);
//       }
//       downloadLoadingInstance.close();
//     })
//     .catch((r) => {
//       console.error(r);
//       Message.error("下载文件出现错误，请联系管理员！");
//       downloadLoadingInstance.close();
//     });
// }

export default service;
